EPR1226 Datasheet, PDF (1/1 Pages) PCA ELECTRONICS INC. – ISDN-S Interface Transformers

ELECTRONICS INC.
ISDN-S Interface Transformers
• Optimizied for Leading Transceiver I.C.’s •
• Meets CCITT 1.430 Four Wire “S” Interface •
• Meets or exceeds UL1459, UL1950 & EN60950 Standards •
• 2000 Vrms Isolation •
• See Selection Guide for I.C. Cross Reference •
Part
Number
EPR1226
EPR1227
EPR1228
EPR1229
Turns
Ratio
1:1 / 1:1
1:1 / 1:2
1:2 / 1:2
1:2.5 / 1:2.5
OCL
(mH Min.)
22
22
22
22
Pri.
1
2
3
4
Electrical Parameters @ 25° C
Cw/w
(pF Max.)
LI
(µH Max.)
Pri. CD
(pf Max.)
100
5
42
100
15
160
100
15
80
100
30
150
Pri. DCR
(Ω Max.)
2.4
2.5
2.5
2.5
Schematic
A
B
Sec.
Pri.
Sec.
16
5
12
15
6
11
14
7
10
13
8
9
Sec. DCR
(Ω Max.)
2.4
4.2
4.3
5.8
Schematic
A
A
B
B
Package
A
Pin 1
I.D.
PCA
EPR12XX
Date Code
B
C
E
D
G
H
F
Dimensions
(Inches)
(millimeters)
Dim. Min. Max. Nom. Min. Max. Nom.
A .900 .920 .910 22.86 23.37 23.11
B .540 .560 .550 13.72 14.22 13.97
C .380 .400 .390 9.65 10.16 9.91
D --- --- .700 --- --- 17.78
E .110 .150 .130 2.79 3.81 3.30
F --- --- .100 --- --- 2.54
G .395 .405 .400 10.03 10.29 10.16
H .024 .027 .025 .610 .686 .635
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
CSR1226 - CSR1229 Rev. - 3/12/99
Product performance is limited to specified parameters. Data is subject to change without prior notice.
TEL: [phone]
FAX: [phone]
http://www.pca.com